CN212166813U - Waste gas purification device is used in calcium hydrate production - Google Patents
Waste gas purification device is used in calcium hydrate production Download PDFInfo
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- CN212166813U CN212166813U CN202020177932.4U CN202020177932U CN212166813U CN 212166813 U CN212166813 U CN 212166813U CN 202020177932 U CN202020177932 U CN 202020177932U CN 212166813 U CN212166813 U CN 212166813U
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- fixedly connected
- filter bag
- gear
- dust
- shell
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- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 title claims abstract description 22
- 239000000920 calcium hydroxide Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000002912 waste gas Substances 0.000 title claims abstract description 18
- 238000000746 purification Methods 0.000 title claims abstract description 16
- 235000011116 calcium hydroxide Nutrition 0.000 title claims description 21
- 239000007789 gas Substances 0.000 claims abstract description 25
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 abstract description 48
- 238000001914 filtration Methods 0.000 abstract description 13
- 240000007643 Phytolacca americana Species 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a waste gas purification device for calcium hydroxide production, which comprises a shell, wherein the bottom inside the shell is provided with an ash discharging valve, the top of the ash discharging valve is fixedly connected with a filter bag, the outer wall of the filter bag is sleeved with a gas ring, the left side wall of the gas ring is fixedly connected with a connecting block, the left side wall of the connecting block is fixedly connected with a rack, the left side wall of the rack is meshed with a third gear, dust-containing gas is introduced from an air inlet, enters the filter bag in the dust-containing gas sleeve ring for filtering, so as to obtain clean air, the clean air is discharged from an air outlet, after the filter bag is filtered for a longer time, more dust is accumulated, a motor is started at the moment, a cam is driven to rotate by the rotation of the motor, so as to drive the connecting plate to periodically vibrate in the vertical direction in a sealing plate, thereby driving, thereby vibrate the adnexed dust in the filter bag and drop, improve filtration efficiency.
Description
Technical Field
The utility model relates to a waste gas treatment technical field specifically is a waste gas purification device is used in calcium hydrate production.
Background
The calcium hydroxide is a white powdery solid, has alkali permeability, and has corrosive effect on skin and fabric. The calcium hydroxide is a common building material, has wide application in industry, is also used as a bactericide, a chemical raw material and the like, is prepared from calcium oxide serving as a raw material, and mainly reacts in a reaction tank in the production process to generate a large amount of waste gas, wherein a large amount of alkaline dust exists in the waste gas, and the waste gas is directly discharged to pollute the atmosphere, so that the calcium hydroxide needs to be purified.
When waste gas generated in the production of calcium hydroxide is treated, firstly, dust in the waste gas is filtered out by using a filtering device to purify the gas, and a bag-type dust collector is generally adopted for dust filtration and is a dust collector which is commonly applied at present. The working principle is as follows: the coarse particles in the dust-containing gas directly fall into the ash bucket after colliding with the wall of the dust removal bag, and the fine particles in the dust-containing gas are filtered through the dust removal bag, so that the dust removal of the dust-containing gas is realized.
Present bag-type ash removal device can accumulate more dust after using a period on the dust removal bag, can block up the dust removal bag like this to influence filter equipment's filter effect, the place that accumulates the dust the easiest in the dust removal bag is inside top and bottom, and current method all adopts gas to blow, but can not carry out effectual cleaing away to the easy deposition phenomenon in dust removal bag top and bottom, influences the filtration efficiency of dust.
Disclosure of Invention
An object of the utility model is to provide a waste gas purification device is used in calcium hydrate production to solve the current ash removal device that provides in the above-mentioned background art and can not effectively clear away filter bag top and bottom deposition, make the poor problem of filter bag filter effect.
In order to achieve the above object, the utility model provides a following technical scheme:
a waste gas purification device for calcium hydroxide production comprises a shell, wherein an ash discharge valve is arranged at the bottom inside the shell, a filter bag is fixedly connected to the top of the ash discharge valve, an air ring is sleeved on the outer wall of the filter bag, a connecting block is fixedly connected to the left side wall of the air ring, a rack is fixedly connected to the left side wall of the connecting block, a third gear is meshed and connected to the left side wall of the rack, a second gear is rotatably connected to the front side of the third gear, a first gear is meshed and connected to the top of the second gear, a second stop lever is fixedly connected to the front side of the first gear, a first stop lever is fixedly connected to the front side of the second gear, a rotating shaft is rotatably connected to the inner wall of the shell under a motor, a poking rod is fixedly connected to the back side of the rotating shaft, a folding pipe is arranged at the bottom of the connecting block, and a, the utility model discloses a filter bag, including the filter bag, the top fixedly connected with backup pad of filter bag, the lantern ring has been seted up to the relative filter bag position of upper surface of backup pad, the right side wall of shell has seted up the gas outlet relative filter bag right side position, the right side wall of shell has seted up the air inlet relative lantern ring right side position, the left side fixedly connected with closing plate of the relative backup pad of intermediate position of shell, the inside sliding connection of closing plate has the connecting plate, the relative lantern ring position fixedly connected with of lower surface of connecting plate vibrates the piece, the left side of connecting plate lower surface is rotated and is connected with the cam, the front of cam is provided.
As a further aspect of the present invention: the outer wall of rack is provided with the slider, the relative slider position of inner wall of shell is provided with the spout, slides in the spout through the slider, plays limiting displacement, is favorable to rack drive's stability.
As a further aspect of the present invention: the initial position of the first stop lever is horizontally arranged, the initial position of the second stop lever is vertically arranged, the first stop lever is driven to rotate clockwise by rotating the poking rod clockwise, the second gear is driven to rotate clockwise, the third gear is driven to rotate clockwise, the rack is driven to move downwards, the connecting block is driven to move downwards, the gas ring is driven to move downwards, the first gear is driven to rotate anticlockwise by rotating the second gear, the second stop lever is driven to rotate anticlockwise, the first stop lever rotates clockwise from the horizontal direction to the vertical direction, the second stop lever rotates anticlockwise from the vertical direction to the horizontal direction, the poking rod is separated from the first stop lever, the poking rod continuously idles for a quarter cycle, and is contacted with the second stop lever, and the first stop lever and the second stop lever are driven to return to the original positions, because the poke rod needs to continuously idle for a quarter of a cycle after being separated from the first stop lever to be contacted with the second stop lever, the air ring stays at the top and the bottom of the filter bag for a long time, so that dust accumulated at the top and the bottom of the filter bag is favorably blown away from the inner wall of the filter bag, and the cleaning efficiency of the filter bag is improved.
As a further aspect of the present invention: be provided with the sealing strip between the outer wall of backup pad and the shell, improve the leakproofness of backup pad, prevent inside unfiltered air admission device.
As a further aspect of the present invention: the inside spout of having seted up of closing plate, the inside sliding connection of spout has sealed piece, the connecting plate runs through sealed piece, the equal fixedly connected with spring in top and the bottom of sealed piece slides in the spout through sealed piece to drive the vertical direction periodic vibration of connecting plate, thereby completely cut off the air, prevent that unfiltered air from getting into the inside motor internals that causes of motor and damaging, can cushion the connecting plate through setting up the spring, prevent that the amplitude is too big and cause the damage.
As a further aspect of the present invention: vibrate the piece and be conical structure, and its lower surface area is the same with lantern ring upper surface size, vibrates the piece through setting up and periodically vibrates at lantern ring top to vibrate the inside adnexed dust of filter bag and drop, improve filtration efficiency.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through letting in dusty gas from the air inlet, the gaseous cover intra-annular of dusty gets into the filter bag and filters, thereby obtain clean air, clean air is discharged from the gas outlet, filter the longer back when the filter bag, can accumulate more dust, starter motor this moment, thereby rotate through the motor and drive the cam and rotate, thereby drive the periodic vibration of vertical direction of connecting plate in the closing plate, thereby drive and vibrate the piece and vibrate at lantern ring top periodicity, thereby vibrate the inside adnexed dust of filter bag and drop, and the efficiency of filtration is improved.
2. The rotating shaft is driven to rotate by the belt, so that the poking rod is driven to rotate clockwise, the first stop lever is driven to rotate clockwise, the second gear is driven to rotate clockwise, the third gear is driven to rotate clockwise, the rack is driven to move downwards, the connecting block is driven to move downwards, the gas ring is driven to move downwards, the first gear is driven to rotate anticlockwise by the clockwise rotation of the second gear, the second stop lever is driven to rotate anticlockwise, the first stop lever rotates clockwise from the horizontal direction to the vertical direction, the second stop lever rotates anticlockwise from the vertical direction to the horizontal direction, the poking rod is separated from the first stop lever at the moment, the poking rod continues to idle for a quarter of a period, and is contacted with the second stop lever, and the first stop lever and the second stop lever are driven to return to the original positions in the same way, because the poking rod needs to continue to idle for a quarter of a period after being separated from the first stop lever to be contacted with the second stop lever, at the moment, the air ring stays at the top and the bottom of the filter bag for a long time, the back blowing motor is started to ventilate the air ring through the folding pipe, so that dust accumulated at the top and the bottom of the filter bag is blown away from the inner wall of the filter bag, the cleaning efficiency of the filter bag is improved, and the dust separated from the filter bag enters the dust discharging valve to be collected and cleaned uniformly.
Drawings
Fig. 1 is a schematic structural view of an exhaust gas purification apparatus for calcium hydroxide production.
Fig. 2 is a schematic structural view of a rack in a waste gas purification device for calcium hydroxide production.
Fig. 3 is a schematic structural view of a seal block in an exhaust gas purification apparatus for calcium hydroxide production.
Fig. 4 is a schematic structural diagram of an initial position of a poke rod in the waste gas purification device for calcium hydroxide production.
FIG. 5 is a schematic view showing the structure of the moving position of the poker rod in the waste gas purifying apparatus for calcium hydroxide production
In the figure: 1-shell, 2-dust discharging valve, 3-air outlet, 4-filter bag, 5-air ring, 6-connecting block, 7-supporting plate, 8-air inlet, 9-lantern ring, 10-oscillating block, 11-sealing plate, 12-connecting plate, 13-cam, 14-motor, 15-belt, 16-first gear, 17-rotating shaft, 18-second gear, 19-rack, 20-folding pipe, 21-back blower, 22-first stop lever, 23-poking rod, 24-second stop lever, 25-third gear, 26-sealing block, 27-spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, a waste gas purifying device for calcium hydroxide production includes a housing 1, an ash discharge valve 2 is disposed at the bottom inside the housing 1, a filter bag 4 is fixedly connected to the top of the ash discharge valve 2, an air ring 5 is sleeved on the outer wall of the filter bag 4, a connecting block 6 is fixedly connected to the left side wall of the air ring 5, a rack 19 is fixedly connected to the left side wall of the connecting block 6, a slider is disposed on the outer wall of the rack 19, a sliding groove is disposed on the inner wall of the housing 1 opposite to the slider, the sliding block slides in the sliding groove to achieve a limiting effect, which is beneficial to the stability of the transmission of the rack 19, a third gear 25 is engaged with the left side wall of the rack 19, a second gear 18 is rotatably connected to the front of the third gear 25, a first gear 16 is engaged with the top of the, the front of the second gear 18 is fixedly connected with a first stop lever 22, the inner wall of the housing 1 is rotatably connected with a rotating shaft 17 relative to the position right below the motor 14, the back of the rotating shaft 17 is fixedly connected with a poking rod 23, the initial position of the first stop lever 22 is horizontally arranged, the initial position of the second stop lever 24 is vertically arranged, the poking rod 23 rotates clockwise to drive the first stop lever 22 to rotate clockwise, thereby driving the second gear 18 to rotate clockwise, thereby driving the third gear 25 to rotate clockwise, thereby driving the rack 19 to move downward, thereby driving the connecting block 6 to move downward, thereby driving the air ring 5 to move downward, the second gear 18 rotates clockwise to drive the first gear 16 to rotate counterclockwise, thereby driving the second stop lever 24 to rotate counterclockwise, at this time, the first stop lever 22 rotates clockwise from the horizontal direction to the vertical direction, the second stop lever 24 rotates anticlockwise from the vertical direction to the horizontal direction, at this time, the poke rod 23 is separated from the first stop lever 22, and continues to idle for a quarter cycle, so as to contact with the second stop lever 24, and similarly, the first stop lever 22 and the second stop lever 24 are driven to return to the original positions, because the poke rod 23 needs to continue to idle for a quarter cycle after being separated from the first stop lever 22 to contact with the second stop lever 24, at this time, the air ring 5 stays at the top and the bottom of the filter bag 4 for a long time, which is beneficial for blowing away the dust accumulated at the top and the bottom of the filter bag 4 from the inner wall of the filter bag 4, and improving the cleaning efficiency of the filter bag 4, the bottom of the connecting block 6 is provided with the folding tube 20, the bottom of the folding tube 20 is fixedly connected with the blowback fan 21, the top of the filter bag 4 is fixedly connected with the supporting plate 7, and, prevent unfiltered air from entering the interior of the device, the upper surface of the supporting plate 7 is provided with a lantern ring 9 relative to the position of the filtering bag 4, the right side wall of the shell 1 is provided with an air outlet 3 relative to the right side position of the filtering bag 4, the right side wall of the shell 1 is provided with an air inlet 8 relative to the right side position of the lantern ring 9, the middle position of the shell 1 is fixedly connected with a sealing plate 11 relative to the left side of the supporting plate 7, the interior of the sealing plate 11 is slidably connected with a connecting plate 12, the interior of the sealing plate 11 is provided with a chute, the interior of the chute is slidably connected with a sealing block 26, the connecting plate 12 penetrates through the sealing block 26, springs 27 are fixedly connected at the top and the bottom of the sealing block 26, and slide in the chute through the sealing block 26, so as to drive the connecting plate 12 to vibrate periodically in the vertical direction, prevent that the amplitude is too big and cause the damage, the relative lantern ring 9 position fixedly connected with of lower surface of connecting plate 12 vibrates piece 10, it is conical structure to vibrate piece 10, and its lower surface area is the same with lantern ring 9 upper surface size, vibrate piece 10 in lantern ring 9 top periodicity through setting up, thereby vibrate the inside adnexed dust of filter bag 4 and drop, improve filtration efficiency, the left side of connecting plate 12 lower surface is rotated and is connected with cam 13, cam 13's front is provided with motor 14, it is connected with belt 15 to rotate between pivot 17 and the motor 14.
The utility model discloses a theory of operation is:
after the existing bag-type dust cleaning device is used for a period of time, more dust can be accumulated on the dust removing bag, and the dust removing bag can be blocked, so that the filtering effect of the filtering device is influenced, the most easily accumulated dust in the dust removing bag is the top end and the bottom end of the inner part, the existing method adopts gas to blow, but the dust accumulation phenomenon at the top end and the bottom end of the dust removing bag can not be effectively cleared, when the dust removing device is used, the dust-containing gas is introduced from the air inlet 8, enters the filter bag 4 in the dust-containing gas sleeve ring 9 to be filtered, so that clean air is obtained, the clean air is discharged from the air outlet 3, when the filter bag 4 is filtered for a longer time, more dust can be accumulated, the motor 14 is started at the moment, the cam 13 is driven to rotate through the rotation of the motor 14, so that the connecting plate 12 is driven to periodically, thereby driving the oscillating block 10 to periodically oscillate at the top of the lantern ring 9, thereby oscillating and dropping dust attached inside the filter bag 4, improving the filtering efficiency, driving the rotating shaft 17 to rotate through the belt, thereby driving the poke rod 23 to rotate clockwise, thereby driving the first stop lever 22 to rotate clockwise, thereby driving the second gear 18 to rotate clockwise, thereby driving the third gear 25 to rotate clockwise, thereby driving the rack 19 to move downwards, thereby driving the connecting block 6 to move downwards, thereby driving the gas ring 5 to move downwards, thereby driving the first gear 16 to rotate counterclockwise through the clockwise rotation of the second gear 18, thereby driving the second stop lever 24 to rotate counterclockwise, at this time, the first stop lever 22 rotates clockwise from the horizontal direction to the vertical direction, the second stop lever 24 rotates counterclockwise from the vertical direction to the horizontal direction, at this moment, the poke rod 23 is separated from the first stop lever 22, and the idle rotation is continued for a quarter period, so that the poke rod is contacted with the second stop lever 24, and similarly, the first stop lever 22 and the second stop lever 24 are driven to return to the original positions, and the poke rod 23 needs to be continuously idle for a quarter period after being separated from the first stop lever 22 to be contacted with the second stop lever 24, so that the air ring 5 stays at the top and the bottom of the filter bag 4 for a long time, the back blowing motor 21 is started to ventilate the air ring 5 through the folding pipe 20, thereby being beneficial to blowing away the dust accumulated at the top and the bottom of the filter bag 4 from the inner wall of the filter bag 4, improving the cleaning efficiency of the filter bag 4, and the dust separated from the filter bag 4 enters the dust discharge.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a waste gas purification device is used in calcium hydrate production, includes shell (1), its characterized in that: the bottom in the shell (1) is provided with an ash discharging valve (2), the top of the ash discharging valve (2) is fixedly connected with a filter bag (4), the outer wall of the filter bag (4) is sleeved with an air ring (5), the left side wall of the air ring (5) is fixedly connected with a connecting block (6), the left side wall of the connecting block (6) is fixedly connected with a rack (19), the left side wall of the rack (19) is meshed with a third gear (25), the front of the third gear (25) is rotatably connected with a second gear (18), the top of the second gear (18) is meshed with a first gear (16), the front of the first gear (16) is fixedly connected with a second stop lever (24), the front of the second gear (18) is fixedly connected with a first stop lever (22), the inner wall of the shell (1) is rotatably connected with a rotating shaft (17) relative to the position under the motor (14), the back fixedly connected with poker rod (23) of pivot (17), the bottom of connecting block (6) is provided with folding pipe (20), the bottom fixedly connected with blowback fan (21) of folding pipe (20), the top fixedly connected with backup pad (7) of filter bag (4), the lantern ring (9) has been seted up to the relative filter bag (4) position of upper surface of backup pad (7), the right side wall of shell (1) has seted up gas outlet (3) relative filter bag (4) right side position, the right side wall of shell (1) has seted up air inlet (8) relative lantern ring (9) right side position, the left side fixedly connected with closing plate (11) of the relative backup pad (7) of intermediate position of shell (1), the inside sliding connection of closing plate (11) has connecting plate (12), the lower surface of connecting plate (12) has vibration piece (10) relative lantern ring (9) position fixedly connected with, the left side of connecting plate (12) lower surface is rotated and is connected with cam (13), the front of cam (13) is provided with motor (14), it is connected with belt (15) to rotate between pivot (17) and motor (14).
2. The exhaust gas purification device for calcium hydroxide production according to claim 1, wherein the outer wall of the rack (19) is provided with a slide block, and the inner wall of the housing (1) is provided with a sliding groove at a position opposite to the slide block.
3. The exhaust gas purification apparatus for calcium hydroxide production as set forth in claim 1, wherein said first stopper (22) is placed horizontally in an initial position, and said second stopper (24) is placed vertically in an initial position.
4. The exhaust gas purification device for calcium hydroxide production according to claim 1, wherein a sealing strip is provided between the outer wall of the support plate (7) and the housing (1).
5. The exhaust gas purification device for calcium hydroxide production as claimed in claim 1, wherein a sliding groove is formed in the sealing plate (11), a sealing block (26) is slidably connected to the sliding groove, the connecting plate (12) penetrates through the sealing block (26), and springs (27) are fixedly connected to the top and the bottom of the sealing block (26).
6. The waste gas purification device for calcium hydroxide production as set forth in claim 1, wherein the oscillating block (10) has a conical structure, and the area of the lower surface of the oscillating block is the same as the size of the upper surface of the collar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177932.4U CN212166813U (en) | 2020-02-17 | 2020-02-17 | Waste gas purification device is used in calcium hydrate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177932.4U CN212166813U (en) | 2020-02-17 | 2020-02-17 | Waste gas purification device is used in calcium hydrate production |
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| Publication Number | Publication Date |
|---|---|
| CN212166813U true CN212166813U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020177932.4U Active CN212166813U (en) | 2020-02-17 | 2020-02-17 | Waste gas purification device is used in calcium hydrate production |
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| Country | Link |
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| CN (1) | CN212166813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330375A (en) * | 2020-03-11 | 2020-06-26 | 湖州锦鸿环保工程有限公司 | Gas ring blowback bag type ash removal device based on gear transmission resides |
| CN113731060A (en) * | 2021-08-27 | 2021-12-03 | 朱志辉 | Environment-friendly polluted atmosphere purification treatment device with sealing structure |
-
2020
- 2020-02-17 CN CN202020177932.4U patent/CN212166813U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330375A (en) * | 2020-03-11 | 2020-06-26 | 湖州锦鸿环保工程有限公司 | Gas ring blowback bag type ash removal device based on gear transmission resides |
| CN113731060A (en) * | 2021-08-27 | 2021-12-03 | 朱志辉 | Environment-friendly polluted atmosphere purification treatment device with sealing structure |
| CN113731060B (en) * | 2021-08-27 | 2024-01-16 | 重庆连裕智能科技有限公司 | Environment-friendly polluted atmosphere purifying treatment device with sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A waste gas purification device for calcium hydroxide production Effective date of registration: 20220531 Granted publication date: 20201218 Pledgee: China Construction Bank Corporation Taojiang sub branch Pledgor: Hunan Xiangyi calcium Industry Co.,Ltd. Registration number: Y2022980006861 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |